The Problem of Altitude When Qualifying the Insulating System of Actuators for More Electrical Aircraft

This work concerns the optimization of the sizing of the insulating system of an actuator realized for the aeronautical sector in the framework of the MEA (More Electric Aircraft) and its qualification. Furthermore, the absence of a real standard that takes into account the most stressful conditions at high altitude is discussed. The objective of this article is to provide an easy to use model that allows a conservative choice of the characteristics of the insulation system, given the environmental conditions and the type of power supply installed. Moreover, the calculation methodology on which the tool is based can be a starting point for defining qualification criteria for electric motors used in the aeronautical field.